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Rev | Author | Line No. | Line |
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1612 | dongfang | 1 | #ifndef _TIMER2_H |
2 | #define _TIMER2_H |
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3 | |||
4 | #include <inttypes.h> |
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2189 | - | 5 | #include <math.h> |
6 | #include "configuration.h" |
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1612 | dongfang | 7 | |
2189 | - | 8 | extern volatile uint16_t pwmChannels[MAX_PWMCHANNELS]; |
9 | |||
10 | #define SERVO_RESOLUTION FINE |
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11 | |||
12 | #if (SERVO_RESOLUTION == COARSE) |
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13 | #define F_TIMER2 (F_CPU/32) |
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14 | #define CS2 ((1<<CS21)|(1<<CS20)) |
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15 | #else |
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16 | #define F_TIMER2(F_CPU/8) |
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17 | #define CS2 (1<<CS21) |
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18 | #endif |
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19 | |||
20 | //#define ABSOLUTE_MIN ((float)F_TIMER2*0.00075 + 0.5) |
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21 | //#define ABSOLUTE_MAX ((float)F_TIMER2*0.00225 + 0.5) |
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22 | |||
23 | #define PULSELENGTH_800 ((float)F_TIMER2*0.0008) |
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24 | #define PULSELENGTH_1000 ((float)F_TIMER2*0.0010) |
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25 | #define PULSELENGTH_1500 ((float)F_TIMER2*0.0015) |
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26 | #define PULSELENGTH_2000 ((float)F_TIMER2*0.0020) |
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27 | #define PULSELENGTH_2200 ((float)F_TIMER2*0.0022) |
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28 | |||
29 | #define PWM_CONTROL_SCALE_FACTOR (PULSELENGTH_1000/(float)CONTROL_RANGE) |
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30 | #define PWM_BYTE_SCALE_FACTOR (PULSELENGTH_1000/256.0) |
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31 | |||
32 | // Prevent damage even if grossly misconfigured: |
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33 | // Multiply this by angle in int16-degrees and again by 100 to get servo deflection to same angle |
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34 | // (assuming 90 degrees over 1 ms, which is the norm): |
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35 | |||
1612 | dongfang | 36 | void timer2_init(void); |
2189 | - | 37 | //void calculateServoValues(void); |
1612 | dongfang | 38 | #endif //_TIMER2_H |